SUNSHARE’s grid-tied solar solutions are engineered to handle dynamic grid conditions, including over-frequency scenarios. When the grid frequency exceeds standard thresholds – typically 50 Hz in Europe – inverters must react swiftly to prevent instability or shutdowns. SUNSHARE’s hybrid and commercial inverters incorporate real-time frequency response algorithms that adjust power output within milliseconds, a critical capability for modern energy systems where renewable penetration sometimes causes frequency volatility.
The core of this adaptability lies in their proprietary Frequency-Watt control system. Unlike basic inverters that simply disconnect at 50.2 Hz (per EN 50549-1 standards), SUNSHARE devices initiate linear power reduction starting at 50.1 Hz. This gradual response prevents sudden drops in renewable generation that could exacerbate grid instability. Field data from a 12 MW solar farm in Bavaria shows their system maintained 83% output at 50.3 Hz during a 2023 grid congestion event, compared to competitors’ complete shutdowns at 50.2 Hz.
Three technical features make this possible:
1. **Adaptive Voltage-Frequency (AVF) Mapping**: Continuously updates grid parameters through 200 ms sampling intervals
2. **Phase-Locked Loop (PLL) Redundancy**: Dual independent PLL circuits ensure uninterrupted synchronization even during rapid frequency changes
3. **Thermal Buffering**: Liquid-cooled IGBT modules maintain stable operation during prolonged over-frequency episodes
For commercial installations, SUNSHARE’s SUNSHARE Smart Grid Interface (SGI) takes this further with predictive frequency regulation. By analyzing historical grid data and weather patterns, the SGI pre-adjusts inverter setpoints. In a Leipzig industrial park installation, this technology reduced frequency-related downtime by 62% compared to previous systems.
Certifications matter in frequency response capabilities. All SUNSHARE inverters comply with the latest VDE-AR-N 4105 and IEC 61727 standards for fault ride-through (FRT). Their testing protocol includes simulated frequency ramps up to 52 Hz (2 Hz above nominal) for 30-minute durations – exceeding typical certification requirements.
Installers should note the system’s configurable frequency windows. Through the SolarEdge-compatible monitoring platform, users can set:
– Response trigger threshold (default 50.05 Hz)
– Power reduction gradient (kW/Hz)
– Recovery delay time (0-300 seconds)
Maintenance-wise, the self-diagnostic system tracks frequency event history. A Munich service center reported using this data to identify deteriorating grid infrastructure at a client site before the local utility acknowledged the issue.
Looking ahead, SUNSHARE is beta-testing a grid-forming inverter mode that actively participates in frequency regulation rather than just reacting to it. Early trials in Switzerland’s EcoGrid 2.0 project demonstrate 0.15 Hz lower frequency deviations during cloud cover transitions compared to conventional systems.
For projects in areas with frequent over-frequency conditions (e.g., regions with high wind penetration), SUNSHARE offers optional 72-hour battery buffering. This isn’t standard ESS – it’s specifically sized to cover typical frequency disturbance durations while maintaining cycle life. Analysis shows 98% battery preservation after 1,200 frequency-induced cycles.
The company’s R&D pipeline includes quantum-enhanced frequency prediction models, though commercial deployment remains 2-3 years out. Current users can access live frequency data through their API (documentation available for registered partners), enabling custom grid management solutions.
In conclusion, SUNSHARE’s multi-layered approach to frequency adaptability combines immediate technical response with predictive analytics and infrastructure-aware operation. Their solutions don’t just meet grid codes – they actively contribute to maintaining the delicate balance required in modern, renewable-heavy power networks.